Search found 1607 matches

by fredrosse
Sun Aug 25, 2019 2:51 pm
Forum: Sales and Trade
Topic: Iron Chief is for sale
Replies: 5
Views: 680

Re: Iron Chief is for sale

Having followed your build posts and steaming experiences for years, it is clear that your steamer is first class in every respect. Sorry you are selling, but we all have life's obligations and priorities. I am sure all on this forum appreciate your contributions here, and hope you will stay involve...
by fredrosse
Fri Aug 23, 2019 2:53 am
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 24
Views: 1021

Re: Electrical system for boat

"Maybe it's time to head for Harbor Freight and buy a bore scope." I bought the HF borescope, $69, not bad, it works OK, but only 240 pixels. My computer savvy daughter pointed out that one can get a 720 pixel borescope that is only 7mm in diameter, has a ring of LED lights around the camera, with u...
by fredrosse
Thu Aug 22, 2019 2:16 pm
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 24
Views: 1021

Re: Electrical system for boat

"One of my steel 1/2 inch schedule 80 nipples from the boiler to the main steam valve ("Main stimp wowve!) was eroded on the outside to the depth of the threads after five years of damp, heat and neglect. " Erosion and erosion-corrosion is caused by flowing fluids with enough velocity to wash away p...
by fredrosse
Thu Aug 22, 2019 2:03 pm
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 24
Views: 1021

Re: Electrical system for boat

From Mike, “Anyone have any thoughts on solutions I could use for cleaning? It's an all welded boiler including the tubes.” Tri-Sodium-Phosphate protects steel boiler parts, maintaining a pH of 9-10 is ideal. This takes about a tablespoon of the stuff for every new boiler filling. Get pH test strips...
by fredrosse
Thu Aug 22, 2019 1:35 pm
Forum: General Steamboat stuff
Topic: Website Introduction
Replies: 2
Views: 117

Website Introduction

In the “Welcome to the Steamboating Forum” page, the second paragraph on this page reads thus: Website part, though still expanding, is here to give you the general idea about steamboats, steam engines and why anyone would possibly want to own such a temperamental, slow and often noisy machine. This...
by fredrosse
Thu Aug 15, 2019 2:29 am
Forum: Technical - Engines and Boilers
Topic: Oil burner consumption
Replies: 30
Views: 1593

Re: Oil burner consumption

According to the DEFTSHIP hull software, for the Margaret S., the following results show linear functions for propeller horsepower vs displacement. While the Margaret S. is a sidewheeler, the software only considers screw propeller propulsion, so the computer results are comparable to typical steam ...
by fredrosse
Mon Aug 12, 2019 9:37 pm
Forum: Technical - Engines and Boilers
Topic: Oil burner consumption
Replies: 30
Views: 1593

Re: Oil burner consumption

According to my hull software, considering maximum displacement speeds (Knots .LT. 1.3*SQRT(LWL-ft), this is a linear function of the general form HP = M*(Displacement) + B. Therefore the function does not go through zero horsepower at zero theoretical displacement, which makes sense, because even a...
by fredrosse
Tue Aug 06, 2019 3:45 am
Forum: Technical - Engines and Boilers
Topic: Oil burner consumption
Replies: 30
Views: 1593

Re: Oil burner consumption

"I don't then think that feed water heaters or economisers are worth the extra complexity" I just put a small exhaust feedwater heater on Margaret S, with atmospheric exhaust, and it allows nearly 12 percent more steam generation, due to sending 194F (90C) water into the boiler rather than 70F (21C)...
by fredrosse
Wed Jul 31, 2019 11:15 pm
Forum: Technical - non Engines and Boilers
Topic: Oil inside the condenser
Replies: 4
Views: 587

Re: Oil inside the condenser

"Explain please the reason to use oil with piston valves. I have a piston valve with no oil. Is disaster impending?" Solid piston valve spools, operating in valve cylinders having port passages symmetrical around their entire circumference, produce no side thrust, and can therefore need virtually no...
by fredrosse
Sun Jul 28, 2019 2:22 pm
Forum: General Steamboat stuff
Topic: Where Fred goes when he dies.
Replies: 4
Views: 346

Re: Where Fred goes when he dies.

Mike, I think you are right about that reasoning. On the east USA coast there were almost all sidewheelers, and on ocean service I have never seen sternwheelers. Cross Atlantic service was initially with sidewheelers, and sternwheelers are less suited to rough waters. That being said, sidewheelers d...